As the manager of the Starbucks on Baltimore Avenue (route 1), you are concerned about staffing needs. You believe customer visits follow a Poisson distribution and that student customers average 18 visits to the store over a 30-days month. a. How many times do you expect a student customer to visit the store in a 5-days period?b. What is the probability a student customer visits the store four times in a 5-days period?c. What is the probability a student customer visits the store no more than two times during a 5-days period?d. What is the probability a student customer visits the store at least three times during a 5-days period? tour times in a 5-days period? 5-days period?